If it really works for everyone with the Google DNS address then it is a DNS problem at Swisscom and should therefore be solved.
However, if there is a Swisscom DNS problem, other pages are usually also affected and so far there have been no reports.
[http://www.netzwelt.de/news/125241-google-dns-server-internet-beschnellen-ping-verbessern.html](http://www.netzwelt.de/news/125241-google-dns- server-internet-accelerate-ping-improve.html)
Sometimes it helps if Swisscom assigns a new IP Internet address for the router.
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